﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace LinearGradientBrushDemo
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void Window_MouseMove(object sender, MouseEventArgs e)
        {
            var gridBrush = grid.Background as LinearGradientBrush;
            GradientStop gradientStop0 = gridBrush.GradientStops[0];
            GradientStop gradientStop1 = gridBrush.GradientStops[1];

            Point point = e.GetPosition(this);
            double offset = (point.X + point.Y) / (this.Height + this.Width);
            gradientStop0.Offset = offset;
            gradientStop1.Offset = 1 - offset;
        }
    }
}
